Flanged pipe.



PATENTED JAN. 10, 1905.

J WOOD, J12 PLANGBD PIPE.

APPLICATION FILED new; 1904.

Improvementsin Flanged Pipes, of

. flanges upon these UNITE STATES;

Patented January I 10, .1905

JOHN woon JR, on consHoHooKEN, i nnnsrnvanm j y FLANGED PIPE.

,s1 nc1nIcamIon roi-m ngpart of missh p n-19,896, dated January 10,1905.

Application filed August 8, 19b4- Serial lie-20,049.

following is aspecification.

v My invention relates to certain improvements in wrought-iron or'steelrolled pipeswhich are provided with separate flanges made of iron,steel, or other suitable metal. I

The object of my invention is to place the pipes aocuratelyand by acomparatively cheap method, makingra tight oint between *the flange andthe pipe which subjected.

Will resist any strains to which the pipe is In the accompanyingdrawings, Figure 1 is a side view, partlyin section, illustrating myFig. 2 is an enlarged sectional invention. view of part of the pipe onthe line '2 2, Fig.

' 3. Fig. 3 is a sectional view on the line 3 3,

Fig. 2. Fig. 4 is a thereof.

, perspective view of one of the flanges detached, and Fig. 5 is a viewof amodificatiom A in the present instance is a section of rolled pipewhich may be of any diameter desired, and the metal may be of anythickness,

depending entirely upon the character of work to which the pipe is to besubjected.- I B B are flanges which are secured'to each end of thepipe-section'A. Th tions are secured together through the medium ofthese flanges in the ordinary manner, Heretofore it,has been foundnecessary to either expand the pipes into the flanges so as to make atight joint or thread screw the flanges on the threaded portions Boththese methods are objectionable and costly. '1

In applying the flange to the pipe I bore he opening in the flangeslightlyless in diameter than the outer diameter of the pipe and form inthe flange one orvmore recesses b of any shape desired, the recess beingcircumscribed, and the number of the recesses will depend upon thediameter of the pipe. The recesses can be formed during the process ofcasting the flange or may be formed by drilling after the flange isfinished. By the tudinal or rotary of the other.

' derstood that the recesses may 'tion.; spherlcahas shown, and of eseveral secthe pipe and term f circumscribed recess I' mean a recesswhose walls su'fliciently inclose the recess to prevent longitudinal aswellas rotaange in respect to the} body of the pipe. The flange B-isheated, so

sufliciently to be slipped a over the end of the pipe, and as the flangetive movement of the ii that it will expand cools it will shrink uponthe pipe, formin a tight joint. This jointmay in some instances,

if desired,'be calked in such upset the metal of the of the flange totake up any irregularities or roughness that maybe on theoutside-surface of the pipe where it comes in contact with the flange.The portionb of the flange'is scored, as shown at a: in Fig.

a manner as to with each other a certain distance from the end of the.flange, so that aftertheflange is shrunk onto the'pipelthe operatorforces the metal of the pipe shownin Figs .2

and 3, firmly locking the flange to the-pipe and preventing anylongimotion of oneindependent able machine for this purpose.

be of any size or shape without I preferably make them,

such a size. that the metal of the pipe can be pipe by shrinkage and bya series of locks forced from the pipe into cavities in the flange.

I may form one or "more shallow annular grooves in the inner surface ofthe flange, so

that when the flange is shrunk upon the pipe 9.

the shrinkage will force themetal of the pipe into these grooves. 7These grooves are clearly shownatee, Fig. 5.

I claim asmy invention- 1. The combination of a pipe, aflange mounted onthe pipeand havinga recess in its inner side circumscribed in alldirections ofthe surfaceand into which the metal of the pipe is pipeagainst the metal 4c, inv line with each re- 5 cess, and these recessesare preferably in line Into the recesses, as clearly 7 The pressing ofthe metal of the pipe into these cavities may be'done by '75 hammeringor by usinga press or other suiti It will be u'ndeparting from myinvenhowever,sem1- 8o forced into the. openings without deteriorating orcrystallizingthe metal of'the pipe at the flange. Thus it will be seenthat I fasten'theflange to the 5 tudinal or rotative movementindependent of the flange, substantially as described.

2. The combination of a pipe,a flange shrunk thereon, said flange havlnga serles of recesses,

and projections on the pipe entering the recesses, substantially asdescribed.

3. The combination of a pipe,afiange shrunk on the end of the'pipe, aseries of recesses in I the flangeand projections on the pipeenterforced, so as to hold the pipe against longi--\ ing the saidrecesses, the joint between the plpe and the flange being calked,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two sub- 5 scribing witnesses.

Jon's WOOD. JR. Witnesses:

WILL. A. BARR, Jos. H. KLEIN.

